if a woman tarts herself up, she tries to make herself look more attractive, for example by wearing nice clothes. This expression is often used for showing that you think a woman has made herself look less attractive.

webrooming

the practice of looking at a product online before going to a conventional store to buy it

Free thesaurus definition of to make yourself look more attractive from the Macmillan English Dictionary - a free English dictionary online with thesaurus and with pronunciation from Macmillan Publishers Limited.